Well the end bells between the two motors do not work, so I'm back to square one.
Robert: you may want to enlist the help of Electric Motor Repair.
Thanks Nick, I actually went there with the motor last week, they said it needs to be rewound at a cost of around $450. That will be the last ditch effort.
also have you run the motor for a period of time while detached from the transmission to be sure that something is not binding in the transmission?
Yes, although it doesn't stop and restart when there is no load attached, it clearly does not sound right when being run on the bench. Sounds like waves slowly moving through the motor.
Robert it would be helpful if you pictured the complete motor and said what it is out of as someone may have a good one laying around
The complete motor John is pictured a few posts above in #562933 and as for saying what its out of, NO lol. :-D
Is there a problem with the cap?
No cap problem, the problem with the motor isn't starting, it is staying running. It starts just fine, and the capacitor is out of the circuit during run mode. As far as I can tell there are no shorts to ground.